- Joël Merker, Egmont Porten, “A Morse-theoretical proof of the Hartogs extension theorem”, J Geom Anal, 17, № 3, 2007, 513
- Judith Brinkschulte, “The -equation and the Hartogs phenomenon on weakly q-pseudoconcave C R manifolds”, manuscripta math., 120, № 2, 2006, 181
- Egmont Porten, “The Hartogs phenomenon on weakly pseudoconcave hypersurfaces”, Math. Ann., 354, № 2, 2012, 659
- Jiří Lebl, Alan Noell, Sivaguru Ravisankar, “Codimension Two CR Singular Submanifolds and Extensions of CR Functions”, J Geom Anal, 27, № 3, 2017, 2453